Heating apparatus



Oet. 29, 1940. H. D. 'DUFAULT EATING APPARATUS Filed Aug. 21, 1959 n n wila-51th' ATTORNEY.

Patented oa. 29, 1940 Homer D. Dufault, Eartlianmton,l Mass.,

signor to Holyoke Heater Company, Holyoke, Mass., a. corporation of Massachusetts Application-August 21, 193s, serial N0. :91,232

1,1 claims., l(o1. izo- 3) .Y

This invention relates to improvements in heating apparatus and is directed more particularly to improvements in gas heating apparatus.

- The principal objects of the invention are dif inserted in the heating apparatus may be rendered` inoperative when desired.

Modern gas'ranges such as are used for do mestic purposes are usually provided with open burners 1 the upper side thereof and bothan oven-broiler compartment and one or more other compartments therebelow.

According to -novel features oi the invention, a.

zo heating unit is provided that is adapted to be located in one of said other compartments of a 'gas range and it may in turn have a water heater inserted therein lwith means for directing heat through the heater or for directing it therearound. In this way the heating unit 'may be utilized for heating water or for general heating purposes.

Various other novel features and` advantages of the invention will be hereinafter more fully referred to in connection with the accompanying description of the preferred form of the invention, reference being had to the drawing'. wherein Fig. 1 is a perspective view of 'a range showing 'the heating apparatus of the invention disposed A in a compartment thereof y f Fig.- 2 is a front elevational view of the heating apparatus of theinvention;

Fig. 3 is an enlarged transverse sectional elevational view through the upper part of the main part of the heating apparatus shown in Fig. 2;

' 40 Fig. 4 is a side elevational view of the secondary chamber of the heatingapparatus; j

- Fig. 5 is a perspective view oi.' the water heater unit of the invention;

Fig. 6 is a transverse sectional elevational view erally by 6 is receivable in said adjacent compartment and a wall 8 `of the compartment is provided with a grill Il so constructed that heat from the heating unit may be utilized for heating the room.

'Ihe heating unit consists of primary and secondary chambers l2 and i 4. Front,4 rear, side, upper and lower walls numbered IG, I8, 20, 22 and 24 respectively form the` primary chamber.

Front, rear, side, upper Yand lower walls num- 1Q bered 25, 28, 30, 32, and 34 respectively forrh the secondary chamber... Said chambers' I2 and I4 are connected adjacent theirupper sides by one or more hollow connections 35.*

A gas burner of some desired form represented 1l by 38 is disposed in the lower portion of the chamber i2 and it will be suitably connected to the gas supply. The products of combustion or heat travel upwardly through chamber I2 through connections 35 into chamber I4.

A baille 42 in chamber I4 causes the hot gases to I flow downwardly and then upwardly to .a ilue 42' in the rear wall 28 of said chamber, Preferably spaced iins 44 of relatively thin metal are provided on the walls of the chambers as shownto facilitate the radiation of heat.`

An opening is provided in the iront wall I6 of chamber l2 for receiving a water heater W shown in-Figs. 5 and 6, and the side walls of the said chamber carry supports 52 for said water heater. 'I'he` l'atter includes front and rear end members 54 and 55 between which extend a plurality of tubes 58.

The front end member 54 is provided with hollow portions as shown in Fig. 5 which connect Il the upper tubes 58. The rear end member 56 is preferably hollow to provide interconnection be- 'tween the tubes 58 and pipes 51 may be connected to the rear member as shown in Fig. F7

for connecting the water heater to a hot water 4l supply system. 'I'he tubes 58 may be provided l y with ilns, quills or other heat absorbing properties such as indicated by 59.

` Side plates 52 and an,l upper plate 54 extend between the end members to provide an enclosure for the tubes 58 as shown in Fig. 6. There are spaces `66 vbetween the upper sides-of plates 62 and plate 64. f Brackets 68 may be associated with end members 54 and 56 and these will have a longitudinally 50 extending rod 10 journalled therein. A gate or damper- 12 is xed to the rod 10 and said rod has an oset end portion in the form of a crank 'l2' to facilitate-rotating of the rod.

Brackets 16 having horizontally disposed supl porting portions 18 are secured to the side walls 82 of the water heater. Thus the heater may be inserted in the opening 50 in the front wall of chamber I2 in such a way that members 18 rest .on supports 52 whereby the heater is suspended within the said chamber.

With the water heater in place in the chamber, the opening' 50 may loe-closed by a plate 80 secured in place by screws 82.

A lever 84 is pivoted to wall I6 of the heater and a link 85 connected thereto at 86 receives the end of crank 12' of rod 10. By swinging lever 84 up and down the gate`12 is caused to swing between its open position shown in Fig. 6 upwardly to closed position where itA closes the space between walls 62 of the water heater.

In Fig. 1 the lever 84is shown in the closed position of the gate. The lever 84 is more or less spring like andan abutment 86 is provided so` used the crank 12 thereof will-be connected to link 85.

With the gate 'I2 swung upwardly to closed lposition heat passes up and around the water heater, the walls of thev chamber being heated so that heat passes out through theg'rill I0.

When it is desired to direct more heat onto the tubes of the water heater, the gate is moved to open position by releasing lever 84, and swinging it upwardly. With the gate in the open position shown in Fig. 6 heat passes upwardly through the water heater and out slots 66 thereof.

It will be observed that the heating apparatus may be utilized in the compartment of the range with or without the water heater being used. A's explained when the water heater is in place the gate provides the means for directing heat therethrough or around the same as may be desired. y

While I have described the invention in great detail and with respect to the present preferred form thereof, it is not desired to belimited thereto since changes and modifications may be made therein without departing from the spirit and scope of the invention. The invention may be embodied-in other specific forms without departing from the essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoingv description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

What it is desired to claim and secure by Letters Patent of the United States is:

.L l. The combination with a compartment o f af gas range of a heating unit comprising, a closed chamber having an opening in a wall thereof ends thereof, pipes for connecting one of said headers to a water supply, and means associated with said heater and operable from without said compartment whereby the eiect of combustion products from said burner on water in said water heater may be varied.

2. The combination with a compartment of a gas range of a heating unit comprising, a closed chamber having an opening in a wall thereof and a burner therein, a secondary closed chamber having a flue therein, a tubular connection between the upper parts of said chambers, a water heater removably disposed in the rst-named chamber adjacent said opening therein, said water heater including spaced longitudinallyextending tubes and connecting headers at the ends thereof, pipes for connecting one of said headers to a Water supply, means associated with said heater and operable from without said compartment whereby the effect of combustion products from said burner on water in said water heater may be yaried, and a baffle in said secondary chamber for aiecting the ilow of combustion products traveling therein.

3. A heatingunit insertable in and removable from a compartment of a gas range comprising in combination, a primary chamber having a -burner therein, a secondary chamber having a flue therein, a tubular connection between the upper parts of said chambers, a water heater removably disposed in the primary chamber, said water heater including spaced longitudinallyextending tubes and connecting headers at the ends thereof, pipes for connecting one of said headers to a water supply and a pivoted gate associated with said water heater which is movable to direct the flow of combustion products from said burner through or around said water heater. l

4. A; heating unit insertable in and removable from a compartment of a gas range comprising in combination, a primary chamber having a burner therein, a secondary chamber having a flue therein, a tubular connection between the upper parts of said chambers, a water heater removably disposed in the primary chamber, a pivoted gate associated with said water heater which is movable to direct the flow of combustion products from said burner through or around said water heater, said Water heater including spaced side walls and end headers with pipesbetween said headers and an upper wall spaced from said side and end walls, and pipes associated with one of said headers for connecting the same to a hot water supply.

5. A heating unit insertable in and removable from a compartment of a gas range comprising in combination, a primarycompartment having a burner therein, a'secondary compartment having' a ilue therein, a tubular connection between the upper parts of said compartments, a water ,heater connected to end headers removably disposed in the .primary compartment and having walls at the sides of said pipes spaced to provide an open lower side, said water heater having pipes for connecting to a water supply and having a rotatable rod associated therewith, a gate secured to said rod and movable thereby to close said open lower side of the Water heater when said l rod is rotated, a lever pivoted to the outside of said primary compartment, and a link having one combination, a primary compartment having av burner therein, a secondary compartment lhaving a ilue therein, a tubular connection between the upper parts of said compartments, a water heater connected to end headers removablyV disposed in the primary compartment and having walls at the sides of said pipes spaced to provide an open lower side, said'water heater having pipes for connecting to a water supply and having a rotatable rod 'associated therewith, a gate secured to said rod andl movable thereby to close vsaid open lower side of the water heater when said rod is rotated, a lever pivoted to the outside of said primary compartment, and a link having one end pivoted to said lever and its other end connected to said rod, said primary compartment and water heater having co-operating means whereby said heater may be suspended within a compartment, of a gas range.

'1. A heating unit insertable in and removable from a compartment of a gas range comprising in combination, a primary compartment having av burner in its lower side and an opening in a wall thereof above said burner, a secondary compartment having a ilue therein, a tubular connection between the upper parts of said compartments, a water heater removably disposed in the primary compartment adjacent A,said opening, said heater having spaced side walls and end headers and an upper wall spaced above said side and end walls to provide an open lower side with tubular members extending between said headers, spaced brackets carried by said heater adjacent said lower side havingL a rotatable rod journalied therein and a gate secured to said rod and movable thereby to close said lower side oi the water heater compartment when said rod is rotated',

said rod having an offset crank extending outwardly of said primary compartment whereby said rod may be rotated from without the said compartment.

8. A heating unit insertable in and removable from a compartment of a gas range comprising in combination, a primary compartment having a burner therein and an opening in a wall thereof above said burner, -a secondary compartment ,having a flue therein, a tubular connection be- 9. The combination of a compartment strucl ture and water heater insertable in and removable therefrom, the said compartment structure having upper, lower, side and end wall members with certain wall members provided with a flue outlet and an opening for the insertion and withdrawal of said water heater, the said water heater including an upper wall, spaced side walls and end headers providing a structure open at its lower side with spaced water pipes extending between saidend headers and across said opening, a gate pivoted to said water heater for swinging movements towards and away from the .lower open side of said heater, operating mechanism for said gate associated with said compartment, and engageable connections associated with said mechanism and gate to facilitate connection of the gate and mechanism when the water heater is in said compartment.

10. The combination of a compartment structure and water heater insertable in and removabletherefrom, the said compartment structure having upper, lower, side and end wall members with certain wall members provided with a flue outlet and an opening for `the insertion and Withdrawal of said water heater, -the said water heater including an upper wall, spaced side walls and end headers providing a structure open at its lower side with spaced water pipes extending between said end headers and across said opening, a gate pivoted to said water` heater for swinging movements towards and away from the lower open side of said heater, means for supporting the water heater in .said compartment, operating mechanism for said gate associated with said compartment, and engageable connections associated with said mechanism and gate to facilitate connection of the gate and mechanism when the water heater is in said compartment.

11. The combination of a compartment struc- .ture and water heater insertable in and removable therefrom, the said compartment structure having upper, lower, side and end wall members with certain wall members provided with a ilue outlet and an 'opening for the insertion and withdrawal of said water heater, the said water heater including angularly disposed longitudinally extending walls and end headers arranged to provide a compartment having an open side with Water pipes extending between said end headers in said compartment across said opening, a gate pivoted to said lwater heater for swinging movements towards and away from the lower open side of said heater, operating mechanism for said gate associated with said compartment, and engageable connections associated with said mechanism and gate to facilitate connection of the gate and mechanism when the water heater is in said compartment.

HOMER D. DUFAULT. 

